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Finding the Fourth Proportional to 163,603.60, 245,405.40 and 134,443.60

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Solution

The fourth proportional to 163,603.60, 245,405.40 and 134,443.60 is: 201,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,603.60 : 245,405.40 = 134,443.60 : x
  2. Step 2: Convert to fraction form
    163,603.60/245,405.40 = 134,443.60/x
  3. Step 3: Cross multiply
    163,603.60x = 245,405.40 × 134,443.60
  4. Step 4: Simplify right side
    163,603.60x = 32,993,185,435.44
  5. Step 5: Solve for x
    x = 32,993,185,435.44/163,603.60
  6. Step 6: Final answer
    x = 201,665.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.